Progressive spinning apparatus



Patented Ian. I0, |899.

A. n. EMERY.

(Applicatipn led Sept. 23, 1897A.

3 Sheets-Sheet I.

m: Nonms Pzvzns co, Famoumo.. wAsHmoToN. n. c.

PROGRESSIVE SPINNING APPARATUS.

(No Model.)

No. 6I7,680. Patented lan. I0, |899.

A. D. EMERY.

PROGRESSIVE SPINNING APPARATUS.

(Appncaeimi mea sept. 23, 1897.)

(No Model.) 3 Sheets-Sheet 2. jQ

lig 2 I ,77 i LH, y 'i m' IIIIIIIIIIIIIIIUIIIIIHIIIIIIII' 0 v 1Blllllllmmmugnm f Y No. 6I7,680.

Patented Ian. l0, |899. A. D. EMERY. PROGRESSIVE SPINNING APPARATUS.

(App'lication fixed sept. 2a, 1897.) (No Model.)

3 Sheets-Sheet 3.

IIIIIIIIIl IIIIII Nrrnn -STATES ATENT muon@ PROGRESSIVE SPINNINGAPPARATUS.

SPECIFICATION forming part of Letters Patent No. 617,680, dated January10, 1899.

Application iiletl September 23, 1897. Serial No. 652,688. (No model.)

to the partially-spun roving delivered from said primary spinning-head,and any suitable winding devices for spooling the resulting yarn.

In the apparatus represented in the drawings embodying an illustrationof the invention the primary spinning-head, which is of the type of thatshown and described in my pending application Serial No. 624,112,embraces,iirst, an upright cylinder'adapted to rotate upon itsgeometrical axis and to contain a bobbin of roving; secondly, adraw-roll frame, which is su rmounted by and connected to saidcylinderand is provided with a whirl for engagin g a band, by which saiddraw-roll frame and cylinder are rotated upon a common vertical axis;thirdly, a system of pairs of superposed draw-rolls mounted in saidframe and rotated upon their parallel horizontal axes by motiontransmitted through atrain of changegears, including as its prime membera wormwheel mounted upon the lower end of the draw-roll frame andengaging a spiral worm formed upon a horizontal bed supported upon thetop of the box, in which a hollow trunnion at the lower end of thedraw-roll frame has its bearing.

The roving receives its initial twist at its point of delivery from thedraw-rolls-that is to say,at what may be called the unfinished end ofthe yarnwhile the required additional twistis given by a supplementalspinning device in comparatively close proximity to the draw-rolls, sothat the yarn receives and permanently retains one part of its twist atits unlinished end, while having the other part of its twist imparted atits iinishedend.

The supplemental spinning device, which may be of any known kind, isrotated in a direction opposite to the direction of rotation of theprimary spinning-head and at such prescribed greaterspeed as may bedesired-as, for example, at twice the speed of the spin` ning-head.

The system of change-gears for transmitting motion to operate thedraw-rolls affords opportunity for varying the speed of rotation of thedraw-rolls upon their own axes relatively to the speed of rotation ofthe spinninghead. Thus the draw-rolls may be made to deliver the rovingat a prescribed rate proportioned as may be desired with reference tothe whole number of twists which are given to the l'oving by thespinning-head and supplemental spinning device combined. Reducing thesaid relative speed of rotation of the draw-rolls increases the numberof twists to the inch given to t-he roving delivered, and, on the otherhand, increasing the said relative speed of rotation of the draw-rollsdiminishes the number of twists to the inch given to the rovingdelivered. The number of twists to the inch in the finished yarn mayalso be varied by merely changing the relative speeds of rotation of thespinning-head and supplemental spinning device.

An important function performed by the spinning-head is the giving of apermanent initial twist to the roving at its point of delivery from thedraw-rolls, whereby it results that the roving is immediately sostrengthened as to enable it to go through the complete spinningoperation without breaking, for the roving is unwound from therovingbobbin by centrifugal force and is assisted by gravity in itspassage down to and through the pairs of draw-rolls. lf the' twistshould be permitted to run up the roving above its point of delivery, itwould be necessary to greatly increase the energy of the grip of thedrawrolls. To avoid this, the partiallytwisted roving is subjected tomoderate friction by being given one or two turns around a smoothhelically-curved wire or pigtail arranged a short distance below thespinninghead, wherebyit results'that the whole' or substantially thewhole of the twist above the pigtail is that which has been given to theroving by the spinning-head, the remainder swfY IOO

of the twist being that given by the supplemental spinning device to thepart of the yarn between the pigtail and the supplemental device.

Vhile spinning-heads of the character described produce yarn of superiorquality in respect of evenness and smoothness of finish, their rate ofproduction is comparatively small, because they cannot be run at thehigh speeds of ordinary spindles; but by the combination of thedescribed spinning-head with a supplemental spinner-such, for example,as a throstle or dier-the rate of production is increased withoutimpairment of quality. For example, if the spinning-head be rotated inone direction at aspeed of three thousand revolutions a minute and thesupplemental spinning device be rotated in the opposite dii rection at aspeed of six thousand revolutions a minute the yarn will receive ninethousand twists a minute, and allowing twenty twists to the inch fourhundred and fifty inches of finished yarn will be produced per minute.

The accompanying drawings, embodying an illustration of the progressivespinner, are as follows: Figure lp is an elevation, partly in vert-icalsection, conventionally representing an upright frame supporting aspinning-head, flier, and spooling device with appropriate driving-gear.Fig. 2 is a top View with the horizontal members of the structurerepresented as broken apart for the purpose of indicating that amultiplicity of progressive spinners may be mounted side by side upon aframe of suitable length. Fig. 3 is a horizontal section taken throughthe plane indicated by the dotted line o@ a; on Fig. l. Fig. 4 is anelevation, partly in vertical section, showing the lower part of theroving-bobbin cylinder and affording a side view of the drawroll frame.Fig. 5 is an elevation of the drawroll frame, partly in section, takenthrough the plane indicated by the dotted line 'y y on Fig. 4. Fig. Gisa transverse section taken through the horizontal plane indicated by thedotted line ,e .e on Fig. 5.

The drawings represent a frame in which there is mounted one progressivespinner. It will be understood that in practice a multiplicity of suchspinners will be mounted side by side in the same frame.

The frame is composed of two uprights A A', united by horizontal membersB, B', C, D, E, F, and G. The spinning-head embraces, first, an uprightcylinder H, adapted to rotate upon its geometrical axis and to contain abobbin of roving and provided at its lower end with thecentrally-perforated head H'; secondly, a draw-roll frame I, provided atits upper end with the hollow trunnion I', which is inserted in andsecured to the lower cylinder-head Il' 5 (a whirl 12 engages adrivingband I3, by which the said draw-roll frame and cylinder orroving-bobbin holder are rotated upon their common vertical axisg)thirdly, a system J of three pairs of superposed drawrolls mounted insaid draw-roll frame and rotated upon their parallel horizontal axis bymotion derived from a worm-wheel K, affixed to the horizontal shaft K',mounted upon the lower end of the draw-roll frame. The teeth of thewheel K engage a spiral worm or scroll K2, formed upon a horizontal bedK3, supported upon the top of the box K, in which the hollow trunnionlAl at the lower end of the d raw-roll frame has its bearing.

The pla-ne of the wheel K is radial with relation to the axis ofrotation of the draw-roll frame. In the organization of gearingillustrated in the drawings the spiral worm in one revolution gains inradius a distance equal to the width of two of the teeth of the wheel K.Hence the wheel K, which has twenty-four teeth, makes one completerevolution upon its horizontal axis during every twelve revolutions ofthe draw-roll frame. By means of suitably-arranged gearing J(represented in detail in Figs. et, 5, and 6) motion is transmitted forthe rotation of the draw-rolls, The lowest pair of rolls J 2 are soproportioned in diameter as to draw off and deliver two inches of theroving at one revolution.

Assuming that the spinning-head is rotated at the rate of three thousandrevolutions per minute, the wheel K would make in the same time twohundred and fifty revolutions. Assuming that the supplemental spinningdevice rotates at the rate of six thousand revolutions per minute, theyarn receives nine thousand twists per minute, and if it is to havetwenty twists per inch then four hundred and fifty inches must bedelivered by the draw-rolls J 2. The wheel K rotates at the rate of twohundred and fifty revolutions per minute. Hence the shaft K' is providedwith a pinion L, of thirty teeth, which engages a pinion L', ofthirty-three teeth, affixed to the shaft L2 of one of the pair ofdraw-rolls J2, whereby the draw-rolls J 2 are made to rotate atone-tenth less speed than the wheel K- z'. e., two hundred andtwenty-five revolutions-and assuming the circumference of the draw-rollsto be two inches each they will thus deliver the required four hundredand fifty inches per minute.

It will of course be understoodthat the gearing may be changed asrequired for adjusting the apparatus to spin yarns of a greater or lessnumber of twists to the inch and also for the purpose of varying therelative propel'- tions of the twists given by the spinning-headl to theunnished end and by the supplemental spinning device to the finished endof the yarn and that the timing of the organization is herein shown anddescribed merely for the purposes of illustration.

The supplemental spinning device (shown by way of illustration in thedrawings) consists of the quadrangular flier M, which is provided at thetop and bottom with the hollow trunnions N and O and is arranged torotate in axial alinement with the described spinning-head. The trunnionN has its bearing in the box N', which is fastened by the IOC IIC

set-screw N2 in the horizontal member E of the frame. The upperend ofthehollowtrunnion N projects above the box l and has affixed to it thewhirl N3, which is engaged by the driving-band N4. The hollow trunnion Ohas its bearing in the box O', secured by the set-screw O2 in thehorizontal member F of the frame. The partially-spun roving deliveredfrom the draw-rolls is led through the hollowT trunnion N, thencespirally around the pigtail O3, thence spirally around the upper half ofone of the side members of the flier, and through the transverseaperture therein H to the spool P. its lower end upon the disk P',affixed to the endwise-sliding vertical stem P2, and is centralized bythe extension through its core of the upper part P3 of said verticalstem. The lower part P*L of said stem slides in the box P5, secured bythe set-screw PG in the horizontal member G of the frame.

The symmetrical laying of the yarn upon the spool is effected byappropriate up and down feeding motions of the spool-carrying disk P.These motions are derived from the rotating feed-cam Q, which acts uponthe lever Q, pivoted at one end to the frame and having its opposite endconnected bythe link Q2 with the collar QS, secured to the lower part P1of the vertical stem P2.

There may be employed any suitable mechanism for rotating thespinning-head and for stopping the rotation of the same if the rovingruns out or if the roving or yarn breaks. The devices for these purposes(shown by way of illustration in the drawings) are similar to thoseshown in my pending application, Serial No. 624,112. They consist of thehorizontal driving-shaft d, mounted in bearings in the standards A A.Opposite each spinning-head the driving-shaft d has affixed to it a'pulley b for engaging the driving-band Is hereinbefore mentioned. Thedriving-band 13 is held taut and made to rotate its spinninghead bymeans of the tightening-pulley c, mounted upon the inner end of thehandlever d.

The hand-lever CZ is pivoted to a bracket O, affixed to the horizontalmember O of the frame, and is provided with a handle CW, by thedepression of which the tightening-pulley is raised into itsband-tightening position.

The lever CZ is provided with the downwardly-projecting shoulder d2,which by engagement with the horizontal arm of the trigger e retains thetightener-pulley c in its band-tightening position. The trigger e ispivotally supported upon the bracket O and is provided with the weightedhand-lever e, by manually elevating which the trigger e is disengagedfrom the shoulder d2 and the band-tightener pulley c thereupon permittedto fall, and thus slack the driving-band I3. The trigger e is alsoprovided with a downwardly-extending arm e2, which has a slot to permitthe passage of the endwise-reciprocat- The spool rests atf The automaticdropping of the band-tight- Y ener pulley and the consequent stopping ofthe spinning-head when the yarn breaks or runs out is effected by meansof the detectorlever h, the longer arm 71, of which is provided with aneye or hook which normally engages the partially-spun yarn between thespinninghead and the iiier and is thereby retainedin such position thatits shorter arm h2 is below the path of travel of the tripper-bar f. Ifthe yarn breaks or the roving runs out, the longer arm of the detectorunder the induence of gravity falls, and its shorter arm h2 then swingsupward and over against the slotted arm e2 of the trigger e. In thisposition it receives the impact of the tripper-bar f and bycommunicating the motion thereof to the trigger c releases the trigger efrom the shoulder d2, and thus permits the tighteningpulley c to fall,and thereby slack the drivingband I3, so that it ceases to rotate thespinnin g-head.

The hand-lever d is connected by the pitman t' with the arm fi', pivotedat one end to the bracket i2, affixed to the horizontal member E of themain frame and carrying at its free end the band-tightener pulley 3 fortightening the Hier-driving band N4.

Outside one end of the frame the drivingshaft CL is provided with agearj, which en-v gages a gearj, mounted on a stud fastened to theadjustable slotted arm jz. The gearj also engages and serves to transmitmotion to the pinion 7c, affixed to the horizontal shaft 7s andhavingits bearings in the standards A A. The speed of rotation of theshaft r/ relatively to the speed of the driving-shaft a is determined bythe relative diameters of the gear]l and the pinion 7a. As shown in thedrawings, the shaft k is made to rotate at twice the speed of the shafta.

Opposite each flier is affixed to shaft 7o a pulley I for engaging theiier-driving band N4.

It will be seen that by manually depressing the handle d of the lever dboth tightenerpulleys are simultaneously raised and the belts I3 and N4thus tightened. If, however, occasion arises to turn the spinning-headwithout turning the flier, the gearjl can be disengaged from the gear jby properly rocking the adjustable arm jg. Similarly if it be desired tochange the relative rates of rotation of the shafts a and 7c the gear jand the pinion 7c may be removed from their respec- IOO IOS

IIO

tive shafts and others of the required different diameters substitutedin their places. The driving-shaft ct is provided with two pulleys m andn for engaging the belt o, which serves to drive the pulleys m' ora',according to which pair of pulleys it is applied to. The pulleys m and nare affixed to a horizontal shaft o', mounted in a box o2, projectingfrom the standard A. The shaft o has aftixed to its outer end a worm o3for driving the wormwheel o, affixed to one extremity of the horizontalshaft 05, provided With bearings in a bracket affixed to the standard A.The shaft 05 has affixed to its inner end the worm o6 for driving theworm-wheel o7,secured to the feedcam shaft p, which extends across themachine and at proper intervals has affixed to it the feed-cams, one ofwhich, Q, is shown in the drawings.

It will be seen that by the described organization of the drivingmechanism facilityis afforded for varying the relative speeds ofrotation of the spinning-head and iiier, and opportunity is alsoafforded for varying the speed of rotation of the cam-shaft p.

It is desirable, especially when the filler gives a greater number oftwists to the yarn than are given to it by the spinning-head, that thetwists given bythe flier shall be prevented from running up to thedraw-rolls. To this end there is afixed to the under side of thehorizontal member D of the main frame the pigtail O3, around which thepartiallyspun yarn as it comes from the draw-rolls is wound spirally, asshown, prior to its delivery to the flier. The object of this device isto do away with the necessity which would otherwise exist of setting thedraw-rolls close together to enable them to exert the pressure whichwould be required to enable them to grip the partially-twisted yarn, itbeing preferred that the draw-rolls shall act only on the untwistedroving and that the twist at the unfinished end of the yarn shallcommence exactly at its point of delivery from the draw-rolls.

It will be seen that the number of twists per inch given to the yarn maybe varied by simply changing the gearing which transmits motion from theworm-wheel K to the drawrolls, and thereby varying the speed of rotationof the draw-rolls relatively to the speed .of rotation of thespinning-head upon its vertical axis. The number of twists to the inchmay also be varied without varying the speed of rotation of thedraw-rolls by varying the relative speeds of rotation of thespinningbead-driving shaft d and the flier-driving shaft 7a, as hasalready been pointed out.

It will of course be understood that any well-known form of spinner maybe substituted forthe liier shown in the drawings Without departing fromthe invention. The iiier is selected for the purpose of illustration,because it amply answers the requirements of the case.

lVhat is claimed as the invention is-- 1. In apparatus for spinningyarn, the combination as herein set forth of two spinning appliances; aroving-bobbin mounted upon and having a common axis of rotation with oneof said spinning appliances, whereby centrifugal force is utilized toinitiate the unwinding of the roving from said bobbin, means for:rotating said spinning appliancesin relatively opposite directions, forsimultaneously twisting in one direction the roving initially unwoundfrom said bobbin by centrifugal force while twisting in the oppositedirection the finished end of the length of yarn between said twospinning appliances, and means for winding up the nished yarn.

2. Aprogressive spinner,substantiallysuch as herein described, the sameconsisting essentially of a spinning-head composed of a bobbin-holder abobbin and a draw-roll frame rotating in one direction upon a commonvertical axis; a supplemental spinning device rotating in the oppositedirection and arranged beneath and preferably in axial alinement withthe said spinning-head; a system of draw-rolls mounted in horizontalbearings on said draw-roll frame, and means for rotating saiddraw-rollsupon theirown axes at prescribed speeds.

3. In a progressive spinner the combination of a spinning-head composedof a roving-bobbin holder a bobbin and a draw-roll frame adapted torotate upon a common vertical axis; draw-rolls mounted upon horizontalaxes in said frame; means for rotating said drawrolls upon theirhorizontal axes by motion derived from the rotation of the spinningheadupon its vertical axis; a spinning-headdriving shaft mounted in theframe of the machine and provided with a pulley for cngaging thespinning-head-driving band; a supplemental spinning device arrangedbeneath said spinning-head; a supplemental driving-shaft mounted intheframe of the machine and provided with a pulley for engaging the band bywhich the supplemental spin ning device is driven; means for rotatingsaid supplemental driving-shaft by motion derived froln saidspinning-head-driving shaft, and means for varying the relative speedsof rotation of the said two driving-shafts, substantially as and for thepurposes set forth.

4t. In aprogressive spinner,the combination of a spinning-head composedof a roving-bobbin holder, a bobbin, and a draw-roll frame rotating inone direction upon a vertical axis, a supplemental spinning devicerotating upon the same vertical axis in the opposite direction forimparting to the roving the remainder of the required twist, and means,as a pigtail, for imposing ,moderate friction upon the partially-twistedyarn between said spinning-head and supplemental Spinnin g device,substantially as described.

ABRAM. D. EMERY.

Vitnesses:

ESTELLE M. EMERY, CLARENCE C. Porra.

